1154542145 has 16 divisors (see below), whose sum is σ = 1439769600. Its totient is φ = 887822400.

The previous prime is 1154542139. The next prime is 1154542153. The reversal of 1154542145 is 5412454511.

It is a happy number.

It is not a de Polignac number, because 1154542145 - 2¹⁴ = 1154525761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1901 + ... + 48090.

It is an arithmetic number, because the mean of its divisors is an integer number (89985600).

Almost surely, 2^1154542145 is an apocalyptic number.

It is an amenable number.

1154542145 is a deficient number, since it is larger than the sum of its proper divisors (285227455).

1154542145 is a wasteful number, since it uses less digits than its factorization.

1154542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50176.

The product of its digits is 16000, while the sum is 32.

The square root of 1154542145 is about 33978.5541923137. The cubic root of 1154542145 is about 1049.0670912496.

Adding to 1154542145 its reverse (5412454511), we get a palindrome (6566996656).

The spelling of 1154542145 in words is "one billion, one hundred fifty-four million, five hundred forty-two thousand, one hundred forty-five".